Heat-distributing deflector for boilers



Patented Jan. 9, 1923.

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tense .4 F El CE HEAT-DISTRIBUTING- DEFLECTOR FOR BOILERS.

Application filed March 27, 1920. Serial No. 388,367.

To all whom it may concern:

Be it known that we, LUIs GoDARD and Tnonono LARPEY, citizens of the United Mexican States, residing at Mexico city,

5 Federal District, Mexico, have invented certain new and useful Improvements in Heat- Distributing Deflectors for Boilers, of which the following is a specification.

This invention relates to deflecting plates for smoke boxes of locomotive, marine and stationary boilers. The main object is to furnish deflectors by means of which the heat of the flames and of the gases is uniformly distributed through all the tubes, in

amounts and with a force proportionate to the draft and the momentaryand individual necessities, with which the fuel is best utilized.

Another object is to diminish the draft of cold air through the fire box and tubes when the throttle valve is shut.

Another purpose is to make a deflector through the interior of which saturated steam may pass, so it may come out superheated.

With any one of the deflectors placed in the smoke box the draft of the gases and smoke will become indirect, in counter-distinction to the direct draft which is now produced in the boiler tubes.

Fig. 1 is a vertical transverse cross-see tion of a locomotive smoke box with a steam superheating deflector.

Fig. 2 is a vertical longitudinal cross-section of Fig. 1.

Fig. 3 is a horizontal longitudinal crosssection through the locomotive smoke box shown in Figs. 1. and 2.

Referring now to Figs. 1, 2 and 3, 2 is the.

10 smoke-stack of the locomotive, 3 the tube sheet, and 4 the tubes. 41 indicates a smoke box in which is hanging a hollow super heating deflector, divided in two coil sections 42 united by the ribs 43 by means of bolts and nuts 44. The upper ends of the coil sections 42 are connected by elbows 45 to the steam pipe 46, while the other ends of the coil sections are connected by means of the sections of pipe 47 to the cylinders of the locomotive. There will be employed of course the kind of joint necessary to permit the expansion and the contraction of the metal, and both coil sections 42 of the deflector carry upper hooks 48, which catch over the supporting rod 49. lhe front of the superheating deflector which faces towards the tube sheet 3, of course may be' straight as in Fig. 3, or curved as in Fig. 2.

Having thus described our invention what we claimis:

In a boiler, the combination of a smoke box; flue tubes passing through the boiler and terminating at their forward ends in a tube sheet in the smoke box; a combined draft equalizer and products of combustion deflector located in the smoke box adjacent to and parallel with the tube sheet and having its periphery coinciding with the peripheral tubes in the tube sheet, whereby the area of the surface of the deflector confronting said tubes is substantially equal to the area of the tube zone of the tube sheet so that the products of combustion discharge radially over the entire confronting surface of the deflector, said deflector comprising a steam conduit; and means for connecting the conduit of the deflector to the dry pipe of the boiler, whereby the saturated steam from the boiler passes through the deflector and is superheated by the products of com-' bustion nnpmging upon the deflector.

In testimony whereof we have affixed our signatures.

LUIS GODARD. .TEODORO LARREY. 

